Disclosed are a device to diagnose a leakage of a fuel evaporation gas, and a method thereof. When a preset condition information during car driving is satisfied as a technology to diagnose a leakage of fuel evaporation gas in a vehicle fuel system, the device to diagnose the leakage of fuel evaporation gas and the method thereof controls a canister purge valve and generates diagnosis information about the leakage of the fuel evaporation gas based on a switch state information of a pressure switch installed in a natural vacuum leakage detection (NVLD) module; thus diagnosing the leakage of fuel evaporation gas during driving.
연료 증발가스의 누설 진단장치 및 방법을 개시한다. 차량 연료시스템에서 연료 증발가스의 누설을 진단하기 위한 기술로써, 차량 주행 중 기 설정된 조건정보를 만족하는 경우, 캐니스터 퍼지밸브를 제어하고, NVLD(Natural Vacuum Leakage Detection) 모듈 내에 구비된 압력 스위치의 스위치 상태정보에 근거하여 연료 증발가스의 누설에 대한 진단정보를 생성함으로써, 주행 중 연료 증발가스의 누설을 진단할 수 있는 연료 증발가스의 누설 진단장치 및 방법에 관한 것이다.
METHOD AND APPARATUS FOR DETECTING LEAKAGE OF FUEL EVAPORATIVE GAS
연료 증발가스의 누설 진단장치 및 방법
2015-11-10
Patent
Elektronische Ressource
Koreanisch
IPC: | F02M Zuführen von Brennstoff-Luft-Gemischen oder deren Bestandteilen bei Brennkraftmaschinen allgemein , SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / F02D CONTROLLING COMBUSTION ENGINES , Steuern oder Regeln von Brennkraftmaschinen / G01M TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES , Prüfen der statischen oder dynamischen Massenverteilung rotierender Teile von Maschinen oder Konstruktionen |
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